type objTE = {
  name: string,
  age: number,
  [k: string]: unknown
}

let obj = {
  name: "cc",
  age: 2,
  address: "广西" //console.log(obj) 并不能自动推导出 address 的数据
} satisfies objTE

console.log(obj.address)
// obj.ni = "libai"  // satisfies 关键字后，添加新的属性又会报错了